baber/WOPTO huggingface dataset:
Patent GB-593906-A (GB)
Title: Improvements in or relating to the production of tungstic anhydride
IPC: C01G41/00
Filed: 1944-10-09
Abstract: In a process for the production of tungstic oxide by fusion of tungsten ore with alkali followed by the solution of the product in water at a maximum concentration of 0.5 gr. mol. of alkali tungstate per litre, precipitation of tungstic acid by the addition of hydrochloric acid, and separation of the tungstic acid which is redissolved in ammonia at the same concentration preparatory to a second precipitation by hydrochloric acid, the tungstate solution before each of the precipitations contains an excess of at least 8 mols. (preferably 15 to 25 mols.) per mol. of tungstate, of an ionized alkali metal or ammonium compound.  The excess of ionized compound in the first precipitation may be formed by using an excess of alkali, e.g., 10 to 30 times the amount stoichiometrically necessary of sodium carbonate, in the fusion of the ore, which forms sodium chloride on addition of the hydrochloric acid.  For the second precipitation, the ionized compound is formed by dissolving the precipitated tungstic acid in excess of 25 per cent. ammonia which gives ammonium chloride on addition of hydrochloric acid.  After the final precipitation, the tungstic acid is filtered off, washed with 20 to 40 per cent. ammonium nitrate, and calcined at 800 to 1000 DEG C.
Patent GB-138820-A (GB)
Title: A new or improved lock
IPC: E05B27/08
Filed: 1919-08-06
Abstract: 138,820. Chubb & Sons Lock & Safe Co., and Butler, F. J. Aug. 6, 1919. Locks, revolving-barrel; attaching.-The lock is of the type in which a barrel turned by the key operates a night-latch or other bolt through a connector v. The casing d has a removable back-plate e which is slid into undercut grooves f; after it has been placed in position, the casing is inserted in the door and secured by screws g. The barrel consists of a housing k built up from plates k<1>, k<2>, Fig. 7, and end-plates 3, 7, 10, Fig. 8. The back plate 3, by which the T-head 6 of the connector v is attached to the barrel, is passed on to the dowels 4 and the plates 7, 10 on to the dowels 12. The outer plate 10 has a large aperture 11 and the plate 7 a smaller apertu.re 8 through which the projections on the key do not pass. When the key is inserted, the bits s on its end press back slides o in the housing k against the action of springs p. When the slides o have been set by the key to bring notches r in line, the nose of the pivoted dog t enters the notches and the head of the dog is freed from the slot u in the casing, so that the barrel is free to turn. Two locking-dogs may be employed, one on each side of the housing k; or, if it is desired to retain the mechanism in the unlocked position, two slots u may be provided in the casing d for engagement with one locking-dog. Keys.-The key, Figs. 10, 11, has a channel 13 on one side corresponding to the slots 8, 11 in the plates 7, 10 to ensure its insertion in the correct position. The shallow recess 14 for the thumb of the operator facilitates its manipulation.
Patent GB-381920-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B1/48
Filed: 1931-07-07
Abstract: Anthraquinone derivatives are prepared by reacting either (1) a 1 : 3-dihalogenanthraquinone with 2 mols. of a compound different from a - or b -aminoanthraquinone, containing an amino group and capable of being vatted, or with 1 mol. each of two different amino compounds capable of being vatted, at least one of which is different from a - or b -aminoanthraquinone; or (2) a 1,3-diaminoanthraquinone with 2 mols. of a compound other than a mono-a - or b -halogenanthraquinone, which contains halogen and is capable of being vatted, or with 1 mol. each of two different compounds containing halogen and capable of being vatted, at least one of which is different from mono-a - or b -halogenanthraquinone.  Anthraquinones substituted in the 1- and 3-positions by residues capable of being vatted (at least one of which is different from 1- or 2-anthraquinonyl and which do not include a phenanthrenequinone residue) are obtained.  Their dyeing properties may be modified by treatment with acid condensing agents. In some cases an after-treatment with an oxidizing agent is advantageous.  In examples (1) 1 : 3-dibromanthraquinone is condensed with (1) 1:5-monobenzoyldiaminoanthraquinone (2 mols.) (dyes red-brown); (ii) 1 : 4-monobenzoyldiaminoanthraquinone (2 mols.) (dyes currant shades); (iii) 1 : 5-monobenzoyldiamino-anthraquinone (1 mol.) and a -aminoanthraquinone (1 mol.) (dyes reddish-brown); treatment with chlorsulphonic acid followed by after-treatment with sodium hypochlorite yields a fast brown dye; (iv) aminodibenzanthrone (2 mols.; prepared by vatting the nitration product of dibenzanthrone in nitrobenzene) (dyes dark green); (v) 1 : 4- and 1 : 5-monobenzoyldiaminoanthraquinone (1 mol. each) (dyes brown); (vi) 1 : 4-monobenzoyldiaminoanthraquinone (1 mol.) and 1-aminoanthraquinone (dyes wine-red); (vii) 1-aminoanthraquinone (1 mol.) and 1 : 5-diaminoanthraquinone (1 mol.) (dyes red) : (2) 1 : 3-diaminoanthraquinone is condensed with 2 mols. of 1 - benzoylamino - 3 - bromanthraquinone (dyes reddish-brown).  An example of the dyeing of cotton goods is also given.
Patent GB-1185659-A (GB)
Title: Hypodermic Syringe
Inventor: BLACK ROBERT BEAUREGARD
IPC: A61M5/315
Filed: 1967-04-28
Abstract: 1,185,659. Hypodermic syringes. R. B. BLACK. 28 April, 1967 [28 April, 1966], No. 19686/67. Heading A5R. A hypodermic syringe comprises a tubular body 102, 103 for receiving a piston and cylinder type of cartridge 105, 106 containing material to be injected, a mount 108 for a hypodermic needle which will penetrate the cartridge, and means on the tubular body for advancing the cartridge in the body while restraining the piston so that aspiration may be effected through the needle, there also being means in the body for advancing the piston into the cylinder to expel the material in the cartridge. As shown, the syringe contains in a capsule 114 gas under pressure which, when a brake device 116 is released, acts on a piston 111 so as to move this piston together with the piston 106 of the cartridge to eject the injection material. In use, the hypodermic needle is inserted into the patient and an operating lever 121 is depressed (to the position of Figure 2, not shown) so that a finger 124 on the lever moves through a slide 125 the cylinder of the cartridge. Aspiration is thus effected since the piston 106 of the cartridge is secured by a harpoon device 113 to the piston 111 which is held stationery by the spring loaded brake device 116. To eject the contents, the operating lever is depressed further (to the position of Figure 3, not shown) and acts on a member 120 so as to release the brake device 116, the gas in the capsule then causing the pistons 111, 106 to move to the left and eject the cartridge contents. After use, the gas may be re-charged into the capsule either by returning the piston 111 to its original position, or by inserting a charging needle through a plug 115 in the capsule.
Patent GB-1198375-A (GB)
Title: Improvements in or relating to a Jack for Drawing an Anchoring Member on a Cable
IPC: B28B23/04
Filed: 1968-04-26
Abstract: 1,198,375. Jointing by forging. SOC. DES GRANDS TRAVAUX DE MARSEILLE S.A. 26 April, 1968 [19 May, 1967], No. 19969/68. Heading B3H. A device for anchoring a steel sleeve 4 to a multi-strand cable 1 comprises a piston-andcylinder assembly 14, 10 and a tubular extension 5 of the piston which serves to push the sleeve through a die 3. The die is releasably held in the end of the cylinder by jaws 8 in a threaded sleeve. An abutment ring 2 is locked to the cable so that the cable is drawn through the die with the sleeve 4 as the sleeve is pushed. The assembly 14, 10 is hydraulically operated. The sleeve can be anchored at any position along the cable since the piston has an axial bore to enable the cable to extend through the device. After anchoring the outer surface of the sleeve may be screw-threaded.
Patent GB-230358-A (GB)
Title: Improvements in spring suspensions for vehicles
IPC: B60G11/36
Filed: 1924-08-25
Abstract: 230,358. Helsel, W. R. Aug. 25, 1924. Laminar springs; buffers.- A device for distributing the load on a semi-elliptic vehicle spring and absorbing shocks comprising a pair of oppositely-extending arms pivoted to the chassis above the axle, and adjustable discs which are mounted in bifurcated ends of the arms, and disposed within the convolutions of coiled springs carried by the semielliptic spring between the axle and its ends, the coiled springs being attached to the discs. As shown, the semi-elliptic spring 3 is provided with a leaf 17 having coiled ends 16 terminating in rolls 15 held in recesses in the discs 9 which are secured against rotation in the ends 8 of the arms 6 by a square section bolt 10. The tension of the coiled ends 16 is varied by adjusting the angular position of the discs relatively to the arms, and for this purpose each disc is provided with a series of holes 18 one of which is engaged by a pin 20 passed through an aperture in the arm. In the modification shown in Fig. 5, the arms 6 are connected by a rebound spring 22.
Patent GB-263432-A (GB)
Title: Improvements in toy figures
IPC: A63H3/40
Filed: 1926-08-13
Abstract: 263,432. Steiner, H. June 3, 1926, [Convention date.]. Dolls.-Relates to toy figures of the kind in which the eyeballs comprise a lens-shaped body 11, forming the pupil, enclosed in a lens-shaped hollow body 10 in such a manner as to be capable of moving freely therein, and consists in that the hollow body is of glass and is made in one piece. The eyeballs are fixed in the doll's head by means of plaster of Paris or other binding material which covers the back of the eyeballs and forms the whites of the eyes.
Patent GB-1149883-A (GB)
Title: Apparatus for converting a backhoe into a lifting apparatus
Inventor: FERWERDA RAY
IPC: B66C23/62
Filed: 1966-05-06
Abstract: 1,149,883. Load handling machines. R FERWERDA. 6 May, 1966 [6 May, 1965; 18 April, 1966], No. 20054/66. Headings B8B and B8H. In digging apparatus known as a back-hoe, Fig. 11 (not shown), a live boom 10 is mounted on a vehicle 11 for pivotal movement about a horizontal axis 12 or about a vertical axis 13 by hydraulic jacks 6 and (31), (32), Fig. 5 (not shown), respectively. A dipper stick (60) pivotally mounted at (14) is actuated by an hydraulic jack 16 and carries a digging bucket (61). The apparatus is converted into a lifting device, Fig. 1, by disconnecting the jack 16 from the dipper stick (60) which is then removed. A lifting boom 18, which may be single but, as shown, is a telescoping boom with portions 18a, 18b, is pivoted at 19 to the boom 10, the jack 16 being attached to the boom 18 at a pivot pin 22 for luffing movement. A load attached to a cable 33 may be manipulated relative to the boom 18 by a winch 34 removably attached to the boom 10 by bolts 38. A jib boom 40 (dotted lines) may be mounted at the outer end of the boom 18 on a pivot pin 41, being held in place by a holding bracket 42. In the modification shown in Fig. 4 a vertical hoist assembly 50 is provided with a platform 54 manipulated by a cable 330. The hoist assembly 50 and boom 180 may be collapsed for travelling, Fig. 7 (not shown). In a further modification, Fig. 9, a basket 105 is attached to the free end of an arm 103 operatively connected with an hydraulic jack 106 pivotally carried on boom 18. This device may be folded into a carrying position, Fig. 10 (not shown).
Patent GB-296868-A (GB)
Title: Improvements in or connected with electric hare apparatus
IPC: A63K1/02
Filed: 1927-07-29
Abstract: 296,868. Armstrong, D. C. July 29, 1927. Dog-racing apparatus.-In apparatus employing a truck carrying a hare a receptacle is provided for receiving the hare and removing it from the sight of the dogs. In the form shown in Figs. 1 and 3, an open-ended receptacle A normally lies in a recess in the track and can be raised by means of a shaft C and arms C<1>, so as to receive the hare together with a portion of a stick F, a knife edge severing this close up to the screen K. The receptacle may then be lowered before the arrival of the dogs, either manually or automatically by means of a projection E' on the truck striking an arm J secured to the shaft.. In the modification shown in Fig. 5, the receptacle is pivoted to a bracket and is operated directly by hand. The knife H in this arrangement is mounted on the manually-operated shaft C. The stick, instead of being severed, may be merely knocked from its holding clamps.
Patent GB-1057196-A (GB)
Title: Improvements in constructional toys
IPC: A63H33/08
Filed: 1964-05-14
Abstract: 1,057,196. Toy building elements. METTOY CO. Ltd. May 14, 1964 [June 10, 1963], No. 20228/64. Heading A6S. Constructional building elements comprise a plurality of plates 1 for enclosing apertures in open frames formed by the releasable assembly of rod-like members 8, the said plates being releasably secured together in spaced parallel pairs by means of male and female coupling elements 2, 3, respectively, provided on one surface or the plates.
Patent GB-799866-A (GB)
Title: An improved display device
IPC: A47F3/14
Filed: 1955-07-13
Abstract: 799,866. Showcases. BENBOW & CO. (MODERN SHOPFITTERS), Ltd., R., and BENBOW, D. R. Oct. 15, 1956 [July 13, 1955; May 29, 1956], Nos. 20296/55 and 16604/56. Class 52(1) A goods-supporting tray 15 mounted on links 11 pivoted between end plates 1 can be rearwardly retracted for access, as shown, or slid forwardly to lie beneath a transparent cover 23 pivoted at 28.
Patent GB-565364-A (GB)
Title: Improvements relating to slicing machines for celluloid and like substances
IPC: B26D1/00
Filed: 1943-12-04
Abstract: 565,364. Splitting apparatus for celluloid. SHAW & SONS (SALFORD), Ltd., J., and FERN, J. F. Dec. 4, 1943, No. 20302. [Class 31 (i)] A machine for slicing sheets of celluloid or similar material from a block x is constructed of a reciprocating table 3 upon which the block is placed, and a fixed knife 11 cuts the sheets in succession and is lowered between successive reciprocations of the table by means of step-bystep feed mechanism including a pawl 29 on a lever arm 14 actuated by lever mechanism 15-20 from a skid 21 on the lower side of the table which acts to lower the knife-carrier 9 at the end of the return motion of the table 3. To enable the extent of the descent of the carrier 9 to be varied so as to compensate for expansion due to increases of temperature of the block due to the cutting action, a hand wheel 26 is connected by worm mechanism to an adjustable shield which varies the active throw of the pawl 29. The table 3 is reciprocated by a screw operated by a shaft 6a driven by a main reversing motor controlled by reversing and retarding switches 61, 62, Fig. 7 (not shown), operated automatically in sequence by a tappet shaft geared to the shaft 6a of the main motor. The main motor is connected to a reversing motor 40, Fig. 5, which acts to clamp the carrier 9 in position during the working stroke and to relieve the carrier by raising the clamp during the return stroke. The clamp comprises screw-and-nut mechanism 52 driven by bevel gears from a pinion 41, overload-release clutch 42 and rack 43 on lever arm 44 secured to a splined shaft 45. The shaft 12 of the pawl-andratchet mechanism is connected by bevel gears to screws for lowering the carrier 9, and a separate motor 39 can operate the screws to raise the cutter after one block is sliced. The clamp mechanism is operated to lower the clamp at the end of the return stroke of the table by means of a switch 53 operated by an extension 16a of lever 16 when this lever is operated to advance the carrier 9 at the end of the return movement of the table. A reversible belt drive may replace the motor.
Patent GB-1489015-A (GB)
Title: Working up aqueous titanium dioxide hydrate suspensions
IPC: C09C1/36
Filed: 1975-05-14
Abstract: 1489015 Working up titanium dioxide hydrate suspensions BAYER ANTWERPEN NV 14 May 1975 [17 May 1974] 20310/75 Heading ClN In a process for working up an aqueous titanium dioxide hydrate suspension in one or more filtration and washing stages, the suspension is filtered under a pressure of 1-16 bars gauge, preferably 3-6 bars, and converted into a homogeneous, substantially crack-free filter cake with a layer thickness of 10-35 mm. The filter cake may be washed under a pressure of 1-16 bars, preferably 4-10 bars by passing the washing liquid through the filter cake at flow rates of 0À1-1À0 m./h. Ti(III) may be added to the washing water in concentrations of 0À8-4À0 g./l. A membrane filter which comprises horizontal filter compartments which enable filter cakes to be obtained in a layer of controlled thickness is preferably used. The solids content of the cake may be raised to above 45% by weight. The filter cake may be chemically treated before calcination, e.g. at 600-1, 200 C. to form TiO 2  in anatase or rutile form.
Patent GB-289033-A (GB)
Title: Perches for bird-cages
IPC: A01K31/12
Filed: 1927-08-02
Abstract: 289,033. Kos, A. April 22, 1927, [Convention date]. Cages.-The perches in bird cages are supported at each end by resilient devices which permit movement either in a vertical direction or in both vertical and horizontal directions. Fig. 11 shows a form in which the perch 1, perforated to ride on the cage wire, is supported on a coiled spring 15 resting on a cross-bar of the cage; Fig. 12 shows a modification in which the end of the perch is suspended by a coiled spring. The perch may ride between the cage wires and pairs of springs enclose adjacent wires, or the perch may ride on a cage wire the wires adjacent to which guide the coiled springs. The ends of the perches may have forks or hooks for engaging the cage wires or may be grooved for this purpose. Fig. 21 shows a form in which the perch is supported by a flat spring 23 having a re-entrant part 21; this form may be modified by providing two parts 21, and the flat surfaces 23, 24 may be slotted for fitting on to existing cages. In Fig. 24 the perch is supported by a coiled spring 26 wound round a bar and having its end working in a slot 27 in the perch; in a modification, the spring comprises a resilient length of wire a vertical arm of which is secured by a clip to the cage wire. As shown in Fig. 29, the spring 36 is bent upon itself, the loop being placed in a recess in the perch. To provide resilience in both horizontal and vertical directions the perch may be supported by a wire 32, Fig. 25, which is under the influence of both vertical and horizontal springs 30, 31 enclosed in a flat casing secured by a clamp to the cage wire.
Patent GB-1468205-A (GB)
Title: Elevator system
IPC: H02P29/00
Filed: 1974-05-09
Abstract: 1468205 Control of DC motors; smoothing pulsating current WESTINGHOUSE ELECTRIC CORP 9 May 1974 [21 May 1973] 20536/74 Headings H2F and H2J To reduce the operating sound level of a D.C. motor 12 driving the car 70 of an elevator system in one or other direction according to which of two thyristor rectifier bridges 22, 24 is supplying the motor, a filter 30 is interposed between the D.C. output terminals 91, 93 of the bridges and the armature 14 of the motor, the filter being tuned to a frequency less than the fundamental frequency of the ripple component in the D.C. output voltage of the bridges. The frequency chosen is low enough to obtain good attenuation of the ripple component at all levels of operating current, but high enough to prevent instability of the control provided by members 60, 62. For a fundamental frequency of 360 hz (corresponding to a converter comprising a 3- phase full-wave bridge), the tuned frequency should be in the range 100-180 hz. Typical values are given for the inductance and resistance (84) of the reactor 80, the capacitance of capacitor 82 and the resistance of resistor 86, for the inductance and resistance of the motor 12 and for the attenuation at the fundamental frequency and the second and third harmonics when there is no filter present, when only reactor 80 is present, when members 80, 82 are present or when members 80, 82, 86 are present. Attenuation/frequency characteristics are discussed for the aforementioned four conditions, Fig. 2 (not shown), the tuned frequency chosen being 180 hz. If reactor 80 develops a fault, fuse 90 blows, capacitor 82 discharges through a resistor 88 and increased noise in the motor 12 indicates the fault condition.
Patent GB-905547-A (GB)
Title: Improvements in or relating to the recovery of fats, and meat and bone scrap, from incdible slaughterhouse materials
Inventor: SPEER PAUL
IPC: C11B1/00
Filed: 1960-06-10
Abstract: A continuous process for obtaining fat from inedible slaughterhouse material comprises; (a) substantially reducing in size all solid portions including bones, (b) heating to 100 DEG  - 212 DEG F. to lower the moisture content, (c) further reducing to a predetermined particle size (half-inch or less) in a disintegrator, (d) further heating to 220 DEG -270 DEG  F. to rupture fat cells, reduce moisture content, and to assist removal of harmful agents, and (e) centrifugally separating the solid and liquid phases.  Vascular substances may be coagulated or denaturized by a steam heated coagulator, before addition after the first reduction step.  The homogeneous slurry produced by the disintegration step is preferably directed alternately to two dehydrators by means of a two-way valve, thus while one vessel is heated the other is emptied and refilled. The liquid phase effluent from the centrifuge may be recentrifuged and some of the liquid effluent may be fed to the first heating device to aid heat transfer for the initial heating.
Patent GB-751911-A (GB)
Title: Improvements in and relating to locking mechanisms for convertible tops
IPC: E05C9/16
Filed: 1954-07-14
Abstract: 751,911. Releasable fastenings. BRIGGS MANUFACTURING CO. July 14, 1954 [Sept. 4, 1953], No. 20617/54. Class 44. A locking device (e.g. for locking the top header means 11 of a folding top of a convertible type vehicle to header means on the vehicle's body) comprises a pair of locking rods 19 mounted on a support (e.g. the header means 11) for longitudinal movement in substantially oppositely disposed directions (e.g. transversely of the vehicle body so that the rods are movable longitudinally into locking engagement with keeper means 22 on the other header means, when the top is unfolded), a pair of bell-cranks 25 pivoted on said support, each bell-crank having an arm 29, pivotally connected with an end of each of the locking rods and an equalizer link 34 pivotally connected to a second arm 32 on each bell-crank and means 36, 38 for shifting the equalizer link bodily to actuate the bell-cranks (e.g. to cause a longitudinal movement of the locking rods towards the keeper means 22). The keeper means 22 are dowels which each project through a respective opening 23 in the header means 11 and each dowel has an aperture 21 which is engaged with a wedging action by one tapered end 20 of a rod 19. The means 36, 38 for moving the equalizer link are links which are arranged to form a toggle which in its overdead-centre position locks the rods 19 in the dowels 22. The toggle is operated by a pivoted handle 41 and movement of this handle in the direction to lock the toggle is limited by engagement of wall of a notch in the handle with the toggle link 36. The equalizer link 34 is pivotally mounted at its centre on a sliding bolt 16, the end of which has a wedging engagement with notch 15 in a keeper 14, on the header means on the vehicle body. This keeper 14 projects through an aperture 13 in the header means 11. In use, anti-clockwise movement of the handle 41 straightens the toggle 36, 38 and forces the bolt 16 into the keeper 14 so camming the header means 11 downwards on to the body header means. The rods 19 are simultaneously moved to engage the dowels 22. If movement of one of the rods is obstructed, the equalizer link pivots, causing increased movement of the other rod so that it can move to its locking position. The rods 13 are slightly bowed and when in position are under tension so that when the vehicle is operated this tension aided by vibration tends to force an improperly positioned rod into place.